Setting Up The Transmitter; Section 1 General; Safety Check-Out - Sony TMR-RF845R Service Manual

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Setting up the
transmitter
1
Connect the transmitter to audio/video
equipment. Select one of the hookups
below depending on the jack type:
TE
L 13942296513
After correcting the original service problem, perform the following
safety checks before releasing the set to the customer.
1. Check the area of your repair for unsoldered or poorly-
soldered connections. Check the entire board surface
for solder splashes and bridges.
2. Check the interboard wiring to ensure that no wires are
"pinched" or contact high-wattage resistors.
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3. Look for unauthorized replacement parts, particularly
transistors, that were installed during a previous repair.
Point them out to the customer and recommend their
replacement.
.
4. Look for parts which, through functioning, show obvious
signs of deterioration. Point them out to the customer
and recommend their replacement.
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SECTION 1
GENERAL

SAFETY CHECK-OUT

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2 9
8
A To connect to a headphones jack
Transmitter
DC IN 9V
B R A L
OFF ON
NOISE FILTER AUDIO IN
Right channel
Left channel
(red) (white)
Connecting cord
(supplied)
Unimatch plug to headphones
adaptor jack (stereo
(supplied) mini jack)
to headphones
jack (stereo
phone jack)
Q Q
CD Walkman,
3 6 7 1 3 1 5
MD Walkman,
WALKMAN*,
VCR, etc.
5. Check the B+ voltage to see it is at the values specified.
6. Flexible Circuit Board Repairing
• Keep the temperature of the soldering iron around 270˚C
during repairing.
• Do not touch the soldering iron on the same conductor
of the circuit board (within 3 times).
• Be careful not to apply force on the conductor when
co
soldering
.
This section is extracted
from instruction manual.
9 4 2 8
to AUDIO IN
A jacks
1 2 3
CHANNEL
0 5 8 2 9 9 4 2 8
m
9 9
9 9